Burner head and mounting



J. T. VOORHEIS BURNER HEAD AND MOUNTING July 6, 1943.

Filed Aug. 19, 1941 2 Sheets-Sheet 1 INVENTOR. JOSEPH V'ooeHs/sATTORNEYS July 6, 1943. J. T. VOORHEIS BURNER HEAD AND MOUNTING FiledAug. 19, 1941 2 Sheets-Sheet 2 JOSEPH 7'. VOORHE/S T TORNEYS.

Patented July 6, 1943 UNi'iED STATES PATENT orrlrr.

BURNER HEAD AND MOUNTING Joseph T. Voorheis, Oakland, Calif.

Application August 19, 1941, Serial No. 407,447

Claims.

This invention relates to a burner head and mounting, and especially toimprovements in the construction and assembly of the burner head 'andmounting disclosed in my former Patent No. 1,533,482, entitled Burnerhead and mounting, issued April 14, 1925.

In the operation of oil burners of the type here shown, whether it be ina factory, boiler plant, or on board ship, or otherwise, it sometimeshappens that carbon forms in the burner tip or atomizing nozzle, due tothe radiant heat of the furnace to which it is exposed. This usuallyhappens during a momentary shut-down of the burner, and causes partialor complete stoppage of oil flow when the oil is again turned on. Onboard ship, when maneuvering or making a landing, or when a full head ofsteam is required for operating, it is obviously necessary quickl toreplace the clogged burner with a clean one, as the steam pressure mayotherwise drop too low, or the furnace may cool down to such an extentas to cause flarebacks or other disastrous results.

The object of the present invention is generally to improve and simplifythe construction and operation of burner heads and mountings of thecharacter described; to provide a burner head and mounting which permita change of burners in a minimum of time; to provide a socket and headfitting for the burner head,

whereby the connection between the burner head and the oil supply linecan be made rapidly; to provide means on the mounting for aligning thesocket and head fitting when making the oil line connection; andfurther, to pro- .vide separable socket and head fittings, which may beremoved and replaced in the burner head and mounting when wear or damageto said fittings takes place.

The improved burner head and mounting is shown by way of illustration inthe accompanying drawings, in which Fig. 1 is a side elevation of theburner head and mounting partially in section;

Fig. 2 is a front view thereof; and

Fig. 3 is a section similar to Fig. 1 showing a modified structure,

' Referring to the drawings in detail, and particularly to Fig. 1, Aindicates in general a mounting plate which may be suitably secured orsupported in front of a furnace, not here shown, and removablysecured onsaid mounting plate is a burner head, generally indicated at B, whichcarries a burner tube 2 and a nozzle not shown.

The mounting plate is elongated and vertically disposed. At the upperend thereof is formed a hollow boss 4 which supports and secures acombination guide and shielding tube 5, through which the burner tubeand nozzle not shown extend. In the outer end of the boss is formed anannular shoulder 6, and on the face thereof is formed a seat 1, thefunction of which will hereinafter be described. Extending outwardlyfrom the mounting plate A and at right angles thereto are a pair of arms88, which are connected at their outer ends, as shown at 9. These armsand their connection form a yoke which supports a clamping screw I0,whereby the burner head is secured in position when in operation. Formedat the lower end of the mounting plate A and in central alignmentbetween the arms of the yoke and the clamping screw I0 is an opening Hin which is secured, by means of a nut It, a seat fitting l4. One end ofthis fitting is threaded to permit it to be connected with a pipe linewhich in turn is connected with a suitable source of oil supply underpressure. The opposite end of the fitting has a spherical seat l5 formedthereon, which is adapted to receive a cooperating fitting l6 carried bythe burner head. The burner head has an inlet end ll and a discharge endl9, these ends being connected by an arcuate arm 26 in which is formed apassage it to convey oil from the inlet to the discharge. The inlet endll has a threaded opening formed therein to receive the fitting I6, theouter end of said fitting being spherical to engage the socket seat l5of the fitting M.

The discharge end E9 of the burner head has an interior chamber 22formed therein and at one end an annular shoulder 23 to receive andsupport a strainer tube 24. The opposite end of the discharge member I9is threaded to receive a closing plug 25, and this is providedwith anannular recessZB- to receive and clamp the strainer tube when inposition, a suitable handle 2? being formed on the closing plug topermit the burner head to be manipulated readily. Also formed on thedischarge end of the burner head is an annular seat la which cooperateswith the seat I of the boss 4. These two seats substantially engage whenthe burner head is clamped into position, as do the seats formed on' thefittings l5 and I5. On the lower side of the discharge end of the burnerhead is formed a lug 28, and in the lower part of the boss there is arecess 29. The lug 28 enters this recess when the burner head is placedin position, and it secures the burner head against rotation and. at

yoke.

the same time insures positive alignment between the inlet fittings land Hi.

In actual operation, oil will enter through the feed pipe 30 and theflow may be controlled by a valve 3| in the usual manner. The oil passesthrough the fittings I5 and [6, then through the hollow passage formedin the arcuate arm 20, then through the strainer tube 22 and into theburner tube 2, which in turn feeds an atomizing nozzle.

The steam requirements of a boiler vary with the load, and at certaintimes it may be necessary to momentarily shut off the oil supply, or, inother words, to cut off the burner. If the shut-down is merelymomentary, the burner need not be removed, but if the shut-down lastsfor several minutes, the burner should be removed, as the radiant heatof the furnace will heat the atomizing nozzle to such an extent that theoil will tend to carbonize and clog the passages thereof. If thishappens, it is essential that the burner be removed and that it quicklybe replaced with a new clean burner, as a full head of steam must bemaintained, particularly on board ship, for instance, when maneuveringto make a landing, or the like.

In the present instance, if an atomizing nozzle should clog, it would benecessary only for the operator to close the valve 3| and to slacken upon the clamping screw Ill. The moment he does so, the burner headbecomes free and may be grasped by the handle 2! and rotated in aclockwise direction, causing the arcuate arm of the burner head to swingthe inlet end I? and the fitting l6 thereof outwardly from between thearms of the When this has been done, the burner is pulled out of theguide and shielding tube 5 and a new burner may be inserted. When thishas been inserted, the arcuate arm 20 is swung downwardly until itslower end enters between the arms of the yoke. The burner head is thenshoved inwardly to engage the seat members 1 and la, and to cause thelug 28 to enter the recess 29. At this point the fittings l5 and H5 arealigned and the operation is completed by merely tightening the clampingscrew H].

In removing and inserting the burner head, and after removal, when theburner head is lying on a bench, there is a possibility that the seat atthe outer end of the fitting I6 may be damaged. this happens, thefitting l6 may be unscrewed and a new one inserted, and the same is trueof the fitting It. It is for this reason that they are removable andrenewable. The seats between the fittings l5 and I5 are preferablyspherical, and the center of the sphere should be approximately midwaybetween the seating surfaces of said fitting and the point where theclamping screw engages. That point is formed by a slightly raised bossHa which is also machined to the same spherical surface, and so is theend of the clamping screw l9. By so doing all surfaces are more readilyaligned and seated.

The entire structure is exceedingly simple in construction; machinework, and cost of manufacture are reduced to a minimum; and above all,quick insertion and removal of the burner and burner head is permitted.

In Fig. 3 a modified form of burner head is shown which is particularlydesigned for use in conjunction with the type of atomizing nozzle shownin my co-pending application entitled, Methods and means of atomizingliquids, filed December 9, 1940, Serial No. 369,224. In the nozzlestructure there disclosed, a return pipe for excess oil is provided;hence, the burner head shown in Fig. 3 is provided with two passagessuch as indicated at 33 and 34. The passage 33 serves as the supply orinlet just as the structure shown in Fig. 1 and discharges into pipe 2awhich delivers it to the nozzle. The return oil fiows through a pipe 2band this connects with the passage 34. Seat fittings are provided at thelower end of both passages and are held in engagement with cooperatingfittings by a clamping screw Illa, the only difference being that anoutlet block 35 is provided which is connected to a return pipe 36. Theblock is slidably mounted on a pair of rods 3'! and it is positivelymoved when the clamping screw 10a i actuated due to the connection shownat 38. Thus the lower end of the burner head is released from betweenthe fittings when the clamping screw is released as the fittings areactually separated, and is conversely secured when the clamping screw istightened as the fittings are then brought together.

While the burner head shown in Fig. 3 is particularly designed for areturn flow of oil, it may obviously be used in connection withatomizing nozzles employing steam or compressed air as one of thepassages in the burner head can supply oil, and the other steam or airas the case may be, and while these and other features of my inventionhave been more or less specifically described and illustrated, Inevertheless wish it understood that changes may be resorted to withinthe scope of the appended claims, and that the materials and finish ofthe various parts employed may be varied according to what theexperience of the manufacturer and varying conditions of use may demand.

Having thus described my invention, what I claim and desire to secure byLetters Patent is- 1. In a device of the character described, a burnerhead having an inlet end and a discharge end, an arcuate arm connectingsaid ends and having a passage formed therein to convey oil from theinlet end to the discharge end, a mounting to receive and support theburner head, said mounting comprising an elongated plate having an upperand a lower opening formed therein, a yoke having a pair of spaced armssecured to the plate and extending outwardly from the plate, said yokealigning with the lower opening in the plate, a burner tube secured tothe discharge end of the burner head and adapted to extend through theupper opening in the plate and to form a swivel-like support for theburner head to permit the inlet end to be swung inwardly between thearms of the yoke to align with the lower opening, a seat fittingconnected with a source of oil under pressure secured in the loweropening, and a clamping screw carried by the yoke engageable with theburner head to secure the inlet end thereof in seated engagement withthe seat fitting when oil is to be conveyed to the burner pipe.

2. In a device of the character described, a burner head having an inletend and a discharge end, an arcuate arm connecting said ends and havinga passage formed therein to convey oil from the inlet end to thedischarge end, a mounting to receive and support the burner head, saidmounting comprising an elongated plate having an upper and a loweropening formed therein, a. yoke having a pair of spaced arms secured tothe plate and extending outwardly from the plate, said yoke aligningwith the lower opening in the plate, a burner tube secured to thedischarge end of the burner head and adapted to extend through the upperopening in the plate and to form a swivel-like support for the burnerhead to permit the inlet end to be swung inwardly between the arms ofthe yoke to align with the lower opening, a seat fitting connected witha source of oil under pressure secured in the lower opening, a clampingscrew carried by the yoke engageable with the burner head to secure theinlet end thereof in seated engagement with the seat fitting when oil isto be conveyed to the burner pipe, and means cooperating with thedischarge end of the burner head for aligning the inlet end of theburner head with the seat fitting when swung inwardly between the armsof the yoke.

3. In a device of the character described, a burner head having an inletend and a discharge end, an arcuate arm connecting said ends and havinga passage formed therein to convey oil from the inlet end to thedischarge end, a mounting to receive and support the burner head, saidmounting comprising an elongated plate having an upper and a loweropening formed therein, a yoke having a pair of spaced arms secured tothe plate and extending outwardly from the plate, said yoke aligningwith the lower opening in the plate, a burner tube secured to thedischarge end of the burner head and adapted to extend through the upperopening in the plate and to form a swivel-like support for the burnerhead to permit the inlet end to be swung inwardly between the arms ofthe yoke to align with the lower opening, a seat fitting connected witha source of oil under pressure secured in the lower opening, a clampingscrew carried by the yoke engageable with the burner head to secure theinlet end thereof in seated engagement with the seat fitting when oil isto be conveyed to the burner pipe, a lug on the discharge end of theburner head, and a seat formed in the plate adjacent the upper openingformed therein to receive said lug, said lug and seat assuring alignmentof the inlet end of the burner head and the seat fitting.

4. In a device of the character described, a mounting plate, a burnerhead adapted to be supported thereby, said head having two ends with oneopening formed in one end and two openings in the opposite end whichface in opposite directions, said head also having a pair of passagesformed therein connecting the openings in the opposite ends in a mannerto form two separated fiow passages, a fixed seat fitting and a slidableseat fitting carried by the mounting plate between which the end of theburner head having the opposed openings formed therein is adapted to beintroduced, and means en- 'gageable with the slidable seat fitting toclamp the burner head between the fixed and the slidable fittings sothat fluid under pressure may be introduced through the fittings intothe flow passages of the burner head.

5. In a device of the character described, a mounting plate, a burnerhead adapted to be supported thereby, said burner head having an inletand an outlet at each end, and separated passages connecting said inletsand outlets, a pair of pipes one extending through the other, connectedwith the inlet and outlet at one end of the burner head, said inlet andoutlet at the opposite end of the burner head facing in oppositedirections, a pair of seat fittings carried by the mounting plate, andengageable with the opposed inlet and outlet, one of said fittings beingslidably mounted to permit separation of the fittings when introducingthe burner head, clamping means engageable with the slidable fitting toclamp the burner head between the fittings and a pipe connected witheach fitting.

JOSEPH T. VOORHEIS.

